212300220 has 96 divisors (see below), whose sum is σ = 658296576. Its totient is φ = 50688000.

The previous prime is 212300203. The next prime is 212300239. The reversal of 212300220 is 22003212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 212300196 and 212300205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41820 + ... + 46620.

It is an arithmetic number, because the mean of its divisors is an integer number (6857256).

Almost surely, 2^212300220 is an apocalyptic number.

212300220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212300220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329148288).

212300220 is an abundant number, since it is smaller than the sum of its proper divisors (445996356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212300220 is a wasteful number, since it uses less digits than its factorization.

212300220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4891 (or 4889 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 212300220 is about 14570.5257283325. The cubic root of 212300220 is about 596.5545302133.

Adding to 212300220 its reverse (22003212), we get a palindrome (234303432).

The spelling of 212300220 in words is "two hundred twelve million, three hundred thousand, two hundred twenty".